Bundle or box tying machine



July 2, 1940. Q e. A. DUNN HA; I 2,206,299 I BUNDLE 0R BOX TYING-MACHINE Filed July 6, 1922 15 Sheets-Sheet l A m/Maw gay 1?; Hana y 2,1940- e. A. DUNN Er AL I BUNDLE OR BQX TYING MACHINE l5 Sheets-Sheet 2Filed July 6, 1922 INVENTORS,

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Filed July 6, 1922 15 Sheets-Sheet 5 [Mayra/r3 July 2, 1940. Q G.IA.DUNN ET AL 7 2, 6,299

BUNDLE 0R BOX 'IYING MACHINE Filed July 6, 1922 '15 Sheets-Sheatfiwning? July 2, 1940. e. A. DUNN El AL. 2,205,299

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BUNDLE OR BOX TYING MACHINE Filed July 6, 1922 15 Slieets-Sheet 11Ill/mm? gy 22x011.

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' Filed July 6, 1922 15 Sheeta-Sheet 13 v. /////%w/\/// /4 v u y 2.1940. I A. DUNN ET AL 2.2 639 BUNDLE-OR BOX'TYING HACHINB Filed July 6,1922 15 sheets sheet 14 xiv-aria.

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BUNDLE 0R BOX TYING MACHINE Filed July 6, 1922 1.581166125511981; 15

Ila Vim)? Patented Jul 2, 1940 BUNDLE R BOX TYING MACHINE Guy A. Dunnand John Eldridge, Oakland, Calii'.,

assignors, by mesne ass Smart, Berkeley, Calif.

ignments, to Francis A.

ApplicationJuly s, 1922, Serial No. 573,205 94 Claims. (01. 100-31) Thisinvention relates to a bundle or box tying machine. Its object is toprovide a machine which is capable of wrapping a wire around anincompressible bundle and fastening the ends of the wire togetherwithout danger of breaking the wire, and which is also capable of beingused on compressible bundles as well.

It will be understood by those skilled in the art of bundle-tyingmachines that to secure a wire around an incompressible object it isvery difflcult to prevent the wire from being twisted off during thetying operations. To avoid this disadvantage, this machine has specialapparatus to hold the wire loose enough on the bundle, during thewrapping of the binding wire, to provide a suillcient quantity of wireto enable the tie to be made without danger of injury to the wire.

Another object of the invention is to provide a machine which will holdthe wire in a given position after the wire has been passed around thebundle, and to thereupon twist the ends of the wire together, beginningat a point distant from the bundle and approaching the bundle,

the twist ceasing as soon as it has reached the bundle, thereby reducingthe danger of twisting the end of the wire oil and breaking the tie.

Another object of the invention is to provide on the machine for curvingthe wire in, such a direction that when a tie is cut open it willnormally spring into curves convex toward the box, thereby causing thewire to lie perfectly fiat when drawn against the box by the machine.

Another object of the invention is to provide a machine which is capableof being operated from a continuously running pulley but which will onlyproduce a tie whenever the attendant depresses a root-lever and causesthe machine to start, whereupon it will complete one tie and stop.However if desired, the foot pedal may be held down when the machinewill continue to operate.-

Another object of the invention is to provide means whereby the machinewill wrap the wire around boxes or bundles from a coil, and will holdthe wire under a suflicient tension to cause it to be laidtightly aroundthe bundle or box,

without danger of overstraining the wire, and

[without dragging it over the box corners and being passed around itthereby insuring the production of a tightly bound package, means beingprovided to eifect the tightening in two planes.

Another object of this invention is to provide means for holding thepackages securely when they are being tied, to accomplish which objectthe bundle holders are adjustable through a considerable distance andthey each have springs to prevent injury to the bundles by compressingthem should they. be uneven in size. These holders are merely for thepurpose of preventing the box or bundle from being turned over whenbeing tied.

Another object of the invention is to provide means whereby thebundle-compressing apparatus may be adjusted to accommodate a wide rangeof sizes of bundles.

Another object of the invention is to produce a machine capable ofholding an incompressible box tight enough to be operated on, meansbeing provided to allow the tightening apparatus to give enough toprevent injury to the machine or to the box.

Another object of the invention is to provide means whereby the machinewill flatten the 25 twisted wire ends against the side of the box, thebox or bundle being automatically pushed away from the position itoccupies when being tied to the latter position.

Another object of the invention is to construct 39 the machine of such aform as to give it the maximum strength and stifiness to withstand heavyusage, at a. comparatively high speed.

Other objects of the invention will appear as the description proceeds.

Some of the outstanding features of our improved machine may be setforth as follows:

(a) It provides an oscillatory ring for wrapping a wire entirely arounda bundle without sliding the wire across the corner of the bundle. o

Cb) It provides a shuttle and an adjacent pulley which members form twoguide means, the shuttle acting to guide one end of the wire into thetwister and the pulley acting to guide or lay the wire around thebundle. The wire is transferred from one of these guide means to theother during the initial movement of the rotatable means.

(c) It provides an oscillatory wrapping mem- '60 her with means forrotating it through an arc of slightly more than 360 in each direction.This provides for the wire necessary to form the twist knot and makes itpossible for the cut end to extend beyond the cutter on the next holdingdisks,

held in the twister for the next tie.

(d) It provides means for twisting a corner tie knot without exertingundue stress in the wire, for shifting the position of the bundle, andfor pressing the twisted knot against the bundle.

e) It provides means for disposing the opposite ends of the wire in atwister in overlapped relation whereby the rotation of the twisterresults in a twist knot.

Other features of our invention will be apparent from the detaileddescription of the preferred embodiment which is herein specificallydescribed.

.An embodiment of the invention is shown in the: accompanyingdrawingsin' which the same reference numeral is applied to the sameportion throughout, but. we are aware that there may be modificationsthereof.

Fig. 1 is a front elevation of the complete machine looking from theside on which the operator stands,

Fig. 1 is a view in side elevationof a portion of the machine showingthe wire carrying shuttle revolved one-half the distance toward theposition at which the tie ismade.

Fig. 1 is a side elevation of a portion of the machine-showing the wirecarrying shuttle revolved to the position at which the wire is ready tobe cut off preliminary to the making of the tie, the dotted circlesindicating the position of rest of wire carrying wheels. p

Fig. 2 is an elevation of the machine looking at it from the sideopposite to Fig. 1,

Fig. 3 is an elevation of the machine looking at it'from the right-handside of Fig. 1,

Fig. 4 is an elevation of the machine, looking at it from the left-handside of Fig. 1,-

Fig. 5is a plan view of the complete machine,

Fig. 6 is a sectional view, in side elevation, of a portion of thedrive-gear and the box within which the gears are installed, I

Fig. 7 is a sectional view of the worm-wheel which drives the machine,showing the operating clutch, and also showing a portion of the otherdriving apparatus adjacent to the driving-clutch and driving-worm,

Fig. 8 is a view, partly in section, of the Geneva movement and adjacentparts, showing the means for effecting the tying operations.

Fig. 8 is a view of the wire-twisting apparatus, showing it in positionto form one of the hooks on the tie,

Fig. 8 is a side elevation of a left-hand slide for carrying the boxdischarging bar shown in plan view, in Fig. 5, l

Fig. 9 is a view, partly in section, of a portion twisting apparatus,

Fig. 10 is a plan view of the apparatus for compressing the bundleagainst the bundle supporting table, parts of the mainframe of-themachine being omitted for purposes of illustration, v

Fig. 11 is a front elevation ofthe apparatus for compressing the bundlesagainst the bundle supporting table, the remaining parts of the machine,save portions of the main frame, being omitted,

Fig. 11 is a side elevation of one of the box Fig. 12 is a sectionalview on the line A-A, Fig. 11, I v

es, illustrating the cams driving the wire-- stroke so that said cut endmay be gripped and Fig. 12 is a side elevation of a portion of thebundle-compressing-apparatus,

Fig. 13 is a view, in side elevation, of one of the wire ties. as itappears after it has been passed around a. bundle or box and tied, andthen cut open at one corner,

Fig. 14 is a plan view of that portion of the apparatus which pressesthe twisted wire ends against the bundle,

Fig, 15 is a view, in side elevation, looking from the back of themachine of the apparatus for pushing the twisted wire ends against thebundle,

Figs. 16 and 17 are views showing the various positions occupied by theform-er, which pushes the twisted wire ends laterally so they willalways lie on one'side of the tie, I

Fig. 18 is a view illustrating the hammer action for pushing the twistedwire ends against the side of the. bundle,

Fig. 19 is a view illustrating the position the twisted wire ends occupyafter being struck by the hammer shown in Fig. 18.

Fig. 20.is a front elevation of the wire-holding shuttle, showing itsrelation to the tie-holding pin with the machine at rest,

Fig. 21 is a plan view of the parts of the apparatus shown in Fig. 20,

Fig. 22 is a front elevation of the wire-holding shuttle, as it appearsat the end of its total move-- ment in one direction, the dotted linesindicating the normal position of the same apparatus when at rest at theend of its return movement.

Fig. 23 is a front elevation of the apparatus for clamping the bundleside-ways, the frame of the machine being removed for purposes ofillustration,

24 s a plan of the appa atus for adjusting the operative position of thebundle clamping abutment for clamping the bundle side-ways.

Fig. 25 is a view, partly in section, of a portion of the wire-twistingarm showingthe hook-forming arm up, and the cutting arm down,

Fig. 26 is a view of a portion of the twistingarm looking at it in theplane of Fig. 25, showing the hook-forming arm up and the cutting armdown, i

Fig. 27 is a view of a portion of the twisting arm looking in the sameplane as Fig. 25, but showing the cutting arm up and the hook-formingarm coming up to cut oil the wire and form the.

hook.

Briefly, this machine consists of a series of coordinating partsintended to automatically perform the operations of first holding thebundle and then carryingthe tie-wire around the bundle, straightening itfrom the coil, cutting it off, running the cut-off length of wire to aposition to be ready to tieanother bundle, twisting the ends together,moving the bundle to a'second position, folding the twisted ends againstthe side of the box or bundle, andthe machine will be described in theorder in which those operations take place, as follows:

First: The wire-straightening and tensioning apparatus, 7

Second: The bundle holding apparatus, I

Third: The apparatus for carrying the wire around the bundle, and forrestoring the wire end to the initial feeding position,

Fourth: The cutting-off and twisting apparatus,

Fifth: The means for pushing the bundle out of the tying Position.

Sixth: The apparatus for flattening the twisted wire ends against theside of the bundle,

The machine has a base I, of sufiicient extent to give it the desiredstability, from which base a single flat frame extends upwardly. Thisframe is .considerably wider than it is thick, andit is enlarged to forma ring at its upper end, as indicated at 3, with a circular openinglarge enough to allow the largest size bundle to pass through, which itis expected to tie.

At one side of the frame there is a bracket 4 which supports a rod 5,said rod being connected to another bracket 8, aboutthe middle of oneside of the ring portion of the frame. The bracket 8'also supportsseveral grooved wheels I, while movable on the rod 5 is a slide 8 whichhasa horizontally extending shaft 8 to support several other groovedrollers l8. These grooved rollers are for the purpose of taking up theslack of the wire as it passes to the shuttle. The weight of the groovedrollers III the bracket 8 and shaft 8 is suflicient to take up all theslack of the tie both when the tie is being passed around the bundle aswell as at certain times during which the shuttle is being revolved tothe positionv of' rest, following the making of a tie. A rubber bumper5' is placed on the rod 5 above the bracket 5 4. The wire is passedbetween a series of rollers II to |5 inclusive, on a horizontallyextending bracket l5 above the bracket 5, and is then passed severaltimes around the rollers l and II). This bracket has two laterallyextending lugs carrying two rods I8 and 28, forming guide-ways for aslide 2|. The slide 2| carries the two rollers l2 and I4, and it ismoved laterally by means of the screw 22, said screw being operated bythe hand-wheel 23 for moving the slide 2| inwardly or outwardly. Theamount of bending of the wire to produce the straightening action isvaried by changing the position of the rollers i2 and I4 with respect tothe fixed rollers l3 and |5.

On the top of the bracket l5 there is a small adjustable bracket 24carrying a grooved wheel 25 and a guide 25, through which the wire isled to the wheel 25.

The bracket 24 is adjusted in position by loosening or tightening ascrew 21, the object being to allow the reel of wire, to be supplied tothe machine, to be placed in any convenient location.

The wire passes to the machine along the dotted line indicated by theletter W, passing first through guide 25, over the wheel 25, through thestraightening rollers II to I5 inclusive, but in the reverse order fromtheir numbering, and then around the grooved pulleys l8 and 1 severaltimes, after which it passes over the grooved pulley 28 on the shuttlering 29. This pulley 28 is supported by a bracket screwed on the side ofthe shuttle ring 28 which acts as a carrier for the shuttle and wire toencircle the bundle and to restore the wire end to the initial position.i

The frame of the machine supports a gear housing 3|, which gear housingsupports a fixed table 32 carried by a solid post 33 and post 34.

Inside the ring of the main frame and forming At one side of the table32 there are two standards or posts 88, 38, which posts support a sheetmetal partition 48, against which the bundles or boxes are placed whenthey are to be tied.

The table 35 is supported from the main frame 2 of the machine by abracket 35'.

When bundles to be tied are placed in the machine they are placedpartially on table 35 and partially on the table 32, in such a positionas to permit the movable bundle-clamping post 4| to bear against thebundle and press it against the fixed partition 48. This post 4| iscarried by a slidable rack 42 movable in a groove in the slide 42'. Thisslidable rack 42 has teeth which mesh with a gear 44 on a shaft 45. Thisshaft is supported by two bearings 43, 43 on the slide 42', (see Fig.24) and projecting from the bearing 43' is a tube 41 through which theshaft 45 passes. This tube carries a disc 5| at its end. which disc isprovided with a series of holes to lock the abutment 4| in anygivenadjustment. An arm 48 on the shaft'45 carries an operating handle 48 anda pin 5|, which pin is normally held in position shown in Fig. 24, bymeans of the spiral spring 5| within the arm 48. The locking pins on thehandles 49 and 88 are slidable in the bosses carrying them to beinserted in the holes in the disks 5| and 83 or withdrawn therefrom whena change of adjustment is to be made. The slide 42' and abutment 4| aremoved by means of the bell-crank arm 53, said arm being pivotallymounted on a pin 54 carried by the main frame and having a roller 55,which is engaged by a cam 55 in cam disk 55' on the shaft 51. A link 58on the upper end of the bell-crank 53 connects it with a bearing 58secured to the under-side of the slide 42'. The cam disk 55' rotatesclock-wise (see Fig. 23), and the roller is shown in said figure in theposition of holding the bundle and just ready to release the same.

The release takes place when the high portion the bundle will be againheld momentarily during which time the hammer will strike the twistedwire end and force it against the side of the bundle. As soon as thisoperation has taken place the high portion C of the cam 55 will comeunder the roller 55, thereby releasing the bundle, whereupon the machinewill stop and await the placing of a new bundle, or the shifting of thebundle that has just been tied, to a position to receive another tie.

In order, to permit the abutment 4| to be brought into engagement withincompressible bundles such as boxes, the pressure to which such bundlesare subjected is regulated by the stiffness of the spring 58,surrounding the rod 58, and bearing against the shackle 53', whichconnects that rod with the bell-crank 53, and in which shackle the rod58 is slidable whenever the abutment 4| strikes anincompressible object.

It will be seen from the above description that the abutment 4 lmay bemoved through a considerable adjustment by rotating the arm 48 withoutaltering the adjustment of the link 58,

and that as the abutment 4| is moved back and forth, the disc 5| will bemoved slightly to correspond therewith, said disc being supported by thefixed tube and slide 42' only.

The means for compressing the package against the bundle supportingtable consists of two ver through bearings 5d, 95 just below the levelof the table 35. Thesdshafts are provided with rack teeth at their.lower ends, as shown in Fig. 11, which rack teeth engage. teeth formedon the shaft 96, which shaft extends through a tubular membert'l, havingintegral bearings as, 69 through which the shafts 60, M respectivelypass' Just under the main frame bearings 52, 653 there are bearings I0,II, which bearings are rigidly connected to said shafts 50 and ti, andthey support a rod l2 connectingthem. The rod it supports two arms I3,I0, which arms are connected at their outer ends by means of a rod 35,carrying a plurality of bushings I6, between which bushings are aplurality of discs H, to bear upon and hold the bundle or box whenpressure is applied thereto. In order to provide for bringing thecompressing arms I3, "I6, and the discs I? against incompressible boxes,and the like, the arms are held down bysprings 13, I9, which springsrest in cups 73', 16'', which are carried by the arms I3, it. Thesesprings bear against set-screws 10', II which are carried by lugs 10f,ii on the bearings 70, II.

Thetube 61 has an arm i8 rigidly connected thereto, at one end, and saidarm carries, rigidly connected therewith, a tube '59 through which theshaft extends The shaft 80 has a bevel gear 8| thereon in mesh with abevel gear 82, onthe end of the shaft 66. The tube I9 has a disc 83,rigidly connected therewith, at its outer end, which disc is providedwith a plurality of holes, as shown at M, for the purpose of adjustingthe height of the rods 60, BI. The shaft 80 carries an arm 85, and thisarm has an operating knob 86, with a pin 8'! adapted to project throughthe holes 84 in the disc 83.

A spring 88. holds the operating knob 86 and its pin 81 in thepositionshown in Fig. 10 normally. It will be seen that if arm is rotated thatthis ,will result in the rotation of the shaft 66 and the raising orlowering of the apparatus for holding the boxes or bundles againstvertical movement.

Depending from the tubular member 61 is a lug or bracket 89.' Thisbracket hasa stub shaft 90 at its lower end, rigidly connected therewithby having the two ears 9I, 92 tightened thereon by means of the bolt 93.This shaft carries a small roller 94 whichroller extends into the groove95 of a cam 96. The cam 96 is carried by the main shaft 51. i

The bundle having been placed in position in the machine on the tables32 and 35 is ready to have the wire wrapped around it, and this isaccomplished by the apparatus about to be described:

The wire having passed through the straightening-wheels and severaltimes around the takeup wheels or tension-wheels 1 and I0, then passesup over the guide-wheel 28, guide-wheel 91 supported by bracket 98 andthen reversely around the guide-wheel 99 on the bracket I00. The ob--'ject of passing the wire reversely around the guide-wheel 99 is toprovide a reverse bend for the wire so as to bring it into shape, suchas is .illustratedin Fig. 13.

throughout its length without pulling it tootlghtand I09. One side ofthis plate is cut away to I accommodate the eccentric tie-grip IM. Thisgrip is pivoted on a pin I05, and there is a spring I98, to hold itnormally engaged with the wire, to prevent the spring of the wire frompulling it out of position when the end of the wire is cut off afterthetiehas been placed around the box or bundle.

In Figs. 20 to 22, inclusive, the position of the wire holding pin I08,with respect to the shuttle, is illustrated, and Fig. 20 shows thenormal position of the shuttle IOI with respect to said pin, when themachine is at rest, in which position the end of the wire has beenforced around the pin I00 into the form of a hook.

tle is approximately 1" from the center of the stop-pin I08, whereas, inFig. 22, the end of the shuttle is approximately 1 from the center ofthe stop-pin, a little less than this extra, thus obtained, beingrequired to make the second hook. v

When the wire has been pulled around the bundle, it will be seen thatthe hook end is then. secured to the pin I08 (see Fig. 22) from whichpoint the wire passes up'and overthe bundle again around the pin I00,the pins I11, I18 determining the necessary slackness of the wire.From'the pin I08 the wire' passes through the plate IOI where it is heldin position by the ec-= centric lock I04 over the top of the wheel 99then under said wheel, and then under the guide wheel I09 shown in Fig.1 from which the wire then passes over one of the tensioning wheels 1.When the tie has been made and the shuttle revolves to its originalposition, the wire slack is taken up by the weight of the wheels I0 andit passes entirely off the wheel I09.

The ring 29, carrying the shuttle and wire supporting wheels, is in turnsupported by three wheels III to H3, inclusive, which wheels are placeddegrees apart and are supported from three inwardly projecting lugs II4to H6, inclusive, on the main frame. This ring is driven by a gear II!on the shaft II8. The gear III is driven from a pinion I I9 on the shaftI20, through the medium ofthesmall pinion I2I Jon the same shaft as thegear II].

The main frame has suitable bearings I22, I23 for the two shafts ,I I8and I20 respectively, and the shaft I20 has a pinion I22 thereon, whichis in mesh with a rack-bar I23 at the lower end of:

whichthere is aibearing I24 to receive the adjustable crank-pin I25 fordriving it.

The rack I23 passes through a slide I26, which holds it in engagementwith the pinion I22. This slide has two cars I21, I which are pivoted onshaft I25 to allow the rack-bar I23 to swing as may be necessary in itstravel with the crank- Din I25.

As explained, in connection with Figs. 50 to 22 inclusive, it isnecessary to rotate the wire shuttle slightly more than one completeturn, and the amount of this rotation is determined by the throw of therack-bar I23. A rough adjustment is, of course, attained with the gearsII5, III, III, but the finer adjustment, to bring the wire-holdingshuttle to the precise point required. is obtained through theadiustment of the crankpin I25, which is slightly eccentric to the pincarrying it which projects through the cam disc 55', and which latterpin is adjusted. as may be required, by the rotation of the-set-screwI25. This adjustment makes it possible to increase or diminish the totalthrow. of the wire-holding shuttle, so as to produce a hook ofa uniformsize each time, the shuttle always returning to the position showninFlg. 20, when the machine stops, at which moment the first hook willbe formed on the wire-holding pin I55. The wireholding pin is carried bythe wire-twister III, which is supported in the bearings I 32, I33 toextend at an angle of about 45 degrees from one corner of the bundle,with its. upper end closely in proximity thereto. This twister carriesthe combined hook former and cutter I315, and the cutting-arm I35. Bothof these members are pivotally mounted on a pin I31, and they each havesome gear teeth formed thereon, which teeth mesh with teeth I33, I35respectively, on the slidable rods I55, Ill.

The wire-twisting arm. III is carried by atubular shaft I55, whichtubular shaft passes through a spiral gear Ill within the gear, casing,

I42. This spiral gear is in mesh with a spiral gear I43 rotating on anaxis at right angles thereto, the latter gear supported on the shaft I.I

The shaft I also carries a gear I45 in mesh with a gear I on the shaftI51.

The shaft 1 also supports a four-point Geneva-stop-movement cam I55.This cam is driven by a small roller I 55 on the arm I55, and the cam isheld in the four stop positions by means of a circular disc I5I,having-a sectorlike portion cut out on one side, as indicated at I52.Inside the tubular shaft I45 there is a tube: I53, and inside that tubethere is a rod Ill. The tube I53 is connected to the push-rod I45 bymeans of a lug I55, while the rod III is connected to the push-rod Illby means of a lug I55.

At its lower end the tube I53 carries a grooved collar I55, while therod I 55 carries a grooved collar I51. i l

Yokes I55, I55 are pivotally mounted on the mainframe at I55, I5Irespectively, and they have a pin on each side for engagement with thetwo collars I 55, I51, the pin being shown at I52, I53.

The end of the link I55 is pivotally supported by a bell-crank leverI55, while the end of the link I51 is supported by another bell-cranklever I15; both of thesebell-cranks are pivotally mounted on a pin HI,and they have the rollers I12, I13 which pass into differently shapedgrooves in a disc-cam I14. The cams on the disc I15 are so arranged asto advance and retract down out of'the way and the member I35 is.pushed-up (note Fig. 27). when the shuttle has moved the wire to theposition shown in Fig. 22, the (note Fig. 27, where it is about to cutoff the wire), and immediately on cutting oi! the wire.

the second hook is formed, the pressure of the cutter against thewireand against the pin I55 being sufiicient to prevent the cut-oil lengthof ,wire from pulling away from-the pin I55 and thereby releasingthebundle. At thistime the Eire w: around the tensloning fingers 15. v It.will beunderstood by those skilled in the art that if the wire is passedaround the bundle or box as tight as it should be on all sides, and

ii anattempt is then made to twist the wire' hook-former is again pushedup,

together to secure the tie( that the wire is more likely to-be twistedofi be properly tied." a

In the present machine the wire is laid first and broken, than 'it is toover the tensioning pin I11, then is laid flat along the top ofthe'bundle, then flat along one side and then under the tensioning pinI15, thereby leaving two sides slack by the distance the pins I11, I15areplaced awayfrom the box or This slackness is necessary to provide thenecessary length of wire to produce a suitable twist, and in the presentinstance, the twist is begun from a point distant from the box and iscarried from that point toward the box so that when all of the slack ofthe wire has been taken up the twist will be complete.

The pins "1,115 are carried by bars I15, I85, and by turning them, theamount 01 slack produced is increased or dimimshed until the properamount of wire is left to'produce the desired twist at the joined endsof the tie.

The pins I11, I15 are held in any given adjustment by meansof theset-screws I5I, I52.

Fig. 6.

The bar I15 is slidablein recesses in the two posts 35 and 35, and thetwo bars I55, I5I are slidable in the grooves in the table 32, and theysupport a plate I55, which plate is used to push the box from theposition in which the tie is made to the position in which'the ties wireends are flattened against the side of the box."

The bar I5I supports the pin. I15. The, bar ,I15 is carried by a plateI53 connected to the slide I54, which slide has 9.- depending lug I 55,

pivotally connected to a link I55. The other end of the link I55 ispivotally connected to the top of they lever I51,.this lever beingpivotally connected at I55, at'the top oi. the gear-enclosing casingI55. The lower endof this lever is offset, and has a roller I5I, whichpasses into a groove formed by the two cam members I52, I53. These twocams are carried on the main shaft 51, and they are shaped to producetwo movements of the rods I15; I55. That portion of the cams marked D"isintended to push the box or bundle ahead a given amount to theposition in which the. twisted wire ends are

